Psychology 2660A/B Lecture Notes - Lecture 2: Observational Error, Quasi, Internal Validity

• School: Western University
• Department: Psychology
• Course: Psychology 2660A/B
• Professor: Laura Fazakas- De Hoog

Document Summary

Goals of i/o psychology as a science. Dominant research methods in i/o psychology: experimental & quasi-experimental studies, non-experimental (correlational) studies, meta-analyses. Practical importance of research: increasing emphasis on evidence based management . Control: able to manipulate variables to affect behavior. Quantitative research: application of scientific method, discover general principles. Relationships (non-experimental: primary focus in this course. Qualitative research: in-depth analysis of subject, used most frequently in practice (e. g. od, less relevant in this course, and less generalizable. Categorical measurement: values of the variable represent discrete categories and not the amount of the characteristic of interest: e. g. Player numbers of a sports team and job titles. Continuous measurement: numbers represent the amount of the characteristic in question: e. g. 1 = book, 2 = computer, 3 = lecture. Hypotheses (makes questions testable: identify relevant variables. Variable is anything that can differ, very general term: operationalize variables (measurement)